<template>
  <div id="app">
    <div>
      <span>姓名:</span>
      <input type="text" v-model="name" placeholder="请输入姓名" />
    </div>
    <div>
      <span>年龄:</span>
      <input type="number" v-model="age" placeholder="请输入年龄" />
    </div>
    <div>
      <span>性别:</span>
      <select v-model="gender">
        <option value="男">男</option>
        <option value="女">女</option>
      </select>
    </div>
    <div>
      <button @click="add(info)">添加/修改</button>
    </div>
    <div>
      <table border="1" cellpadding="10" cellspacing="0">
        <tr>
          <th>序号</th>
          <th>姓名</th>
          <th>年龄</th>
          <th>性别</th>
          <th>操作</th>
        </tr>
        <tr v-for="item in list" :key="item.id">
          <td>{{ item.id }}</td>
          <td>{{ item.name }}</td>
          <td>{{ item.age }}</td>
          <td>{{ item.gender }}</td>
          <td>
            <button @click="remove(item.id)">删除</button>
            <button @click="edit(item.id)">编辑</button>
          </td>
        </tr>
      </table>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      list: [
        { id: 1, name: "Tom", age: 19, gender: "男" },
        { id: 2, name: "Jone", age: 21, gender: "女" },
      ],
      name: "",
      age: "",
      gender: "",
      info: null,
    };
  },
  methods: {
    add(data) {
      if (this.name === "" || this.age === "" || this.gender === "")
        return alert("请输入信息");
      const id = this.list.length ? this.list.slice(-1)[0].id + 1 : 1;
      // console.log(data.id)
      this.info
        ? ((this.list.find((item) => item.id === data.id).name = this.name),
          (this.list.find((item) => item.id === data.id).age = this.age),
          (this.list.find((item) => item.id === data.id).gender = this.gender),
          (this.info = null))
        : this.list.push({
            id,
            name: this.name,
            age: this.age,
            gender: this.gender,
          });
      this.name = "";
      this.age = "";
      this.gender = "";
    },
    edit(id) {
      const obj = this.list.find((item) => item.id == id);
      // console.log(arr)
      this.info = { ...obj };
      // console.log(this.info)
      this.name = this.info.name;
      this.age = this.info.age;
      this.gender = this.info.gender;
    },
    remove(id) {
      console.log(id);
      const index = this.list.findIndex((item) => item.id == id);
      this.list.splice(index, 1);
    },
  },
};
</script>
